import router from './router'
import store from './store'
import { Message } from 'element-ui'
import NProgress from 'nprogress' // progress bar
import 'nprogress/nprogress.css' // progress bar style
import { getToken } from '@/utils/auth' // get token from localStorage
import getPageTitle from '@/utils/get-page-title'
import { systemCode } from '@/utils'

NProgress.configure({ showSpinner: false }) // NProgress Configuration

const whiteList = ['/login'] // no redirect whitelist

router.beforeEach(async (to, from, next) => {
  // start progress bar
  NProgress.start()

  // set page title
  document.title = getPageTitle(to.meta.title)

  // 如果是500页面就不执行请求代码了，直接进入
  if (to.path == '/500') {
    next()
    NProgress.done()
    return
  }

  // determine whether the user has logged in
  const hasToken = getToken()
  if (!store.getters.baseUrl) {
    try {
      await store.dispatch('user/getBaseUrl')
    } catch (error) {
      next(`/500?redirect=${to.path}`)
      NProgress.done()
      // 如果这个接口报错，不往下执行，去500页面
      return
    }
  }
  if (hasToken) {
    if (to.path === '/login') {
      // if is logged in, redirect to the home page
      next({ path: '/' })
      NProgress.done()
    } else {
      const hasGetUserInfo = store.getters.userInfo
      if (hasGetUserInfo) {
        next()
      } else {
        try {
          // get user info
          let tem = await store.dispatch('user/getUserInfo')
          if (tem == 'err') {
            console.log('tem', tem)
            await store.dispatch('user/topslogout')
            return router.push(`/login?redirect=${to.path}`)
          }
          // 如果做动态权限 把这个打开
          let accessRoutes = await store.dispatch(
            'permission/GenerateRoutes',
            systemCode
          )
          router.addRoutes(accessRoutes)
          next(to.path)
        } catch (error) {
          // remove token and go to login page to re-login
          await store.dispatch('user/resetToken')
          Message.error(error || 'Has Error')
          // 如果解决进去白屏问题打开这个
          // next(`/login?redirect=${to.path}`)
          next(`/500?redirect=${to.path}`)
          NProgress.done()
        }
      }
    }
  } else {
    /* has no token*/
    if (whiteList.indexOf(to.path) !== -1) {
      // in the free login whitelist, go directly
      next()
    } else {
      // other pages that do not have permission to access are redirected to the login page.
      next(`/login?redirect=${to.path}`)
      NProgress.done()
    }
  }
})

router.afterEach(() => {
  // finish progress bar
  NProgress.done()
})
